Display screen or portion thereof with a graphical user interface



This application is related to U.S. Design patent application Ser. No.29/524,726, filed Apr. 22, 2015; U.S. Design patent application Ser. No.29/524,727, filed Apr. 22, 2015; U.S. Design patent application Ser. No.29/524,728, filed Apr. 22, 2015; and U.S. Design patent application Ser.No. 29/524,730, filed Apr. 22, 2015, each of which is herebyincorporated by reference in its entirety.

The FIGURE is a front view of a display screen or portion thereof with agraphical user interface showing my new design.

The broken lines illustrate the display screen, portions of thegraphical user interface, and portions of an electronic device. None ofthe broken lines form part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof witha graphical user interface, substantially as shown and described.